Today on the show I share a thought process that I've been adding into my diagnostic decision making. We weigh the value of any test method we perform- How much time/effort/cost does a test require? How much does it tell me/how many things does it eliminate? When faced with a time consuming, difficult, (and often intermittent) diagnostic challenge, should we consider that a part replacement is the cheapest AND most effective test that we could perform? Is this the best value for the customer ...